EP 1016229 A1 20000705 - OPTICAL AMPLIFIER WITH GAIN ADJUSTMENT
Title (en)
OPTICAL AMPLIFIER WITH GAIN ADJUSTMENT
Title (de)
OPTISCHER VERSTÄRKER MIT GEWINNREGELUNG
Title (fr)
AMPLIFICATEUR OPTIQUE A REGULATION DE GAIN
Publication
Application
Priority
- DE 9802539 W 19980827
- DE 19740743 A 19970916
Abstract (en)
[origin: DE19740743C1] The amplifier includes a damping element (VA) and a coupling element (FK) via which a narrow band signal (LL) is fed back from the output to the input. The amplifier is provided in the form of a ring resonator and gain control is accomplished by the feed back. The amplifier element is connected in series with an optical circulator (OZ) and at least one narrow band reflector (FG) which reflects the narrow band signal. The circulator has a second output connected to the damping element for the narrow band signal, which is fed back to the input of the amplifier element.
IPC 1-7
IPC 8 full level
H01S 3/13 (2006.01); H03G 3/30 (2006.01); H04B 10/17 (2006.01); H04B 10/291 (2013.01); H04B 10/296 (2013.01); H04J 14/02 (2006.01)
CPC (source: EP)
H01S 3/1302 (2013.01); H03G 3/3084 (2013.01); H04B 10/291 (2013.01); H04B 10/296 (2013.01); H04J 14/02216 (2023.08); H04J 14/0227 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19740743 C1 19990121; AU 1020899 A 19990405; AU 750467 B2 20020718; BR 9812314 A 20000829; CN 1270719 A 20001018; CN 1332519 C 20070815; DE 59803458 D1 20020425; EP 1016229 A1 20000705; EP 1016229 B1 20020320; HK 1031053 A1 20010525; JP 2001517016 A 20011002; RU 2191478 C2 20021020; WO 9914873 A1 19990325
DOCDB simple family (application)
DE 19740743 A 19970916; AU 1020899 A 19980827; BR 9812314 A 19980827; CN 98809191 A 19980827; DE 59803458 T 19980827; DE 9802539 W 19980827; EP 98952526 A 19980827; HK 01101772 A 20010312; JP 2000512298 A 19980827; RU 2000109571 A 19980827